Basic jQuery

<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title></title>
  <link rel="stylesheet" href="style.css">
  <script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
  <script src="script.js"></script>
</head>
<body>
<h2>Downloads</h2>
<ul class="downloads">
  <li><a href="http://twitter.github.com/bootstrap/assets/bootstrap.zip">Twitter Bootstrap</a>
</body>
</html>

// Add your javascript here
$(function(){
  $('.downloads a').click(function () {
    return confirm("Download?");
  });
});

/* Put your css in here */

h1 {
  color: red;
}